Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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665
AUUS46 KPDT 061200
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PST SAT FEB 6 2016

*** AIR DISPERSION CATEGORIES:   GOOD, FAIR, POOR ***

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW-W 9-16 MPH.      SW-W 10-20 MPH.
TRANSPORT WINDS               SW-W 9-16 MPH.      SW 10-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3500 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR SUN FEB 7         POOR.

VENTILATION INDEX (CATEGORY)  46 (POOR).          325 (FAIR).
OUTLOOK FOR SUN FEB 7         39 (POOR).

FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP...
SELAH...AND NACHES AREA

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 8-15 MPH.        W 10-18 MPH.
TRANSPORT WINDS               SW 8-15 MPH.        W 10-18 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2500 FT MSL.
DISPERSION CATEGORY           FAIR.               FAIR.
OUTLOOK FOR SUN FEB 7         POOR.

VENTILATION INDEX (CATEGORY)  30 (POOR).          74 (POOR).
OUTLOOK FOR SUN FEB 7         31 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 15-25 MPH.       SW 5-10 MPH.
TRANSPORT WINDS               SW 15-25 MPH.       SW 10-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4500 FT MSL.
DISPERSION CATEGORY           FAIR.               FAIR.
OUTLOOK FOR SUN FEB 7         POOR.

VENTILATION INDEX (CATEGORY)  31 (POOR).          104 (POOR).
OUTLOOK FOR SUN FEB 7         47 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      106 (POOR)
ELLENSBURG     84 (POOR)
GOLDENDALE     82 (POOR)
TRI-CITIES    203 (POOR)
WALLA WALLA   369 (FAIR)
YAKIMA         25 (POOR)
BEND           45 (POOR)
PRINEVILLE     70 (POOR)
ENTERPRISE    151 (POOR)
HERMISTON     321 (FAIR)
JOHN DAY       34 (POOR)
LA GRANDE     108 (POOR)
MADRAS         82 (POOR)
MEACHAM       225 (POOR)
PENDLETON     346 (FAIR)
REDMOND        61 (POOR)
SENECA         48 (POOR)
THE DALLES     25 (POOR)

METEOROLOGICAL INFORMATION PROVIDED IN THIS PRODUCT REPRESENTS ONLY
SOME OF THE FACTORS USED IN BURN DECISIONS.  BURN DECISIONS ARE
OUTSIDE THE PURVIEW OF THE NATIONAL WEATHER SERVICE.

THE VENTILATION INDEX IS A TOOL TO ASSIST SMOKE MANAGEMENT
AGENCIES IN DETERMINING BURN OR NO BURN DECISIONS.  A VENTILATION
INDEX GRAPHIC IS ON THE PENDLETON WEBSITE AT THE FOLLOWING ADDRESS:
HTTP://WWW.WRH.NOAA.GOV/PDT/FORECAST/FWXGRAPHICALVENTILATION.PHP?WFO=PDT

IF YOU WOULD LIKE TO KNOW MORE ABOUT THIS PRODUCT...CONTACT THE
NATIONAL WEATHER SERVICE IN PENDLETON.

$$



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